<!--
// Copyright © 2023 Hardcore Engineering Inc.
//
// Licensed under the Eclipse Public License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License. You may
// obtain a copy of the License at https://www.eclipse.org/legal/epl-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//
// See the License for the specific language governing permissions and
// limitations under the License.
-->
<script lang="ts">
  import { Doc } from '@hcengineering/core'
  import { Label } from '@hcengineering/ui'
  import { IntlString } from '@hcengineering/platform'
  import { AttributeModel } from '@hcengineering/view'
  import activity, { DisplayDocUpdateMessage, DocUpdateMessageViewlet } from '@hcengineering/activity'
  import { Person } from '@hcengineering/contact'

  import { LinkData, getLinkData } from '../../activityMessagesUtils'
  import ActivityDocLink from '../ActivityDocLink.svelte'

  export let message: DisplayDocUpdateMessage
  export let viewlet: DocUpdateMessageViewlet | undefined
  export let person: Person | undefined
  export let objectName: IntlString | undefined = undefined
  export let object: Doc | undefined
  export let parentObject: Doc | undefined
  export let attributeModel: AttributeModel | undefined = undefined
  export let collectionName: IntlString | undefined = undefined

  const isOwn = message.objectId === message.attachedTo

  let linkData: LinkData | undefined = undefined

  $: void getLinkData(message, object, parentObject, person).then((data) => {
    linkData = data
  })

  function getTitle (): IntlString {
    const { attributeUpdates } = message
    const added = attributeUpdates?.added ?? []
    const removed = attributeUpdates?.removed ?? []

    if (added.length > 0 && removed.length === 0) {
      return activity.string.Added
    }
    if (removed.length > 0 && added.length === 0) {
      return activity.string.Removed
    }

    return activity.string.Changed
  }
</script>

{#if viewlet?.label}
  <span class="text-sm lower"> <Label label={viewlet.label} /></span>
{:else if message.previousMessages?.some(({ action }) => action !== message.action)}
  {@const name = collectionName ?? objectName}
  <span class="text-sm lower">
    <Label label={activity.string.Updated} />
    {#if name}
      <Label label={name} />
    {/if}
  </span>
{:else if message.action === 'create' && objectName}
  <span class="text-sm lower">
    <Label label={isOwn ? activity.string.Created : activity.string.Added} />
    {#if collectionName && (!isOwn || message.previousMessages?.length)}
      <Label label={collectionName} />
    {:else}
      <Label label={objectName} />
    {/if}
  </span>
{:else if message.action === 'remove' && objectName}
  <span class="text-sm lower">
    <Label label={activity.string.Removed} />
    {#if collectionName && message.previousMessages?.length}
      <Label label={collectionName} />
    {:else}
      <Label label={objectName} />
    {/if}
  </span>
{:else if attributeModel}
  <span class="text-sm lower"><Label label={getTitle()} /></span>
  <span class="text-sm lower"> <Label label={attributeModel.label} /></span>
{/if}

{#if linkData}
  <ActivityDocLink
    preposition={!isOwn || message.action === 'update' ? linkData.preposition : undefined}
    object={linkData.object}
    panelComponent={linkData.panelComponent}
    title={linkData.title}
  />
{/if}

<style lang="scss">
  span {
    margin-left: 0.25rem;
    font-weight: 400;
    line-height: 1.25rem;
  }
</style>
